Fixed wireless back haul for mobile communications using stratospheric platforms

• US 6,829,479 B1
• Filed: 07/14/2000
• Issued: 12/07/2004
• Est. Priority Date: 07/14/2000
• Status: Expired due to Term

• Current Assignee: The DIRECTV Group, Inc. (AT&T, Inc.)
• Original Assignee: The DIRECTV Group, Inc. (AT&T, Inc.)
• Inventors: Feria, Ying, Rosen, Harold, Chang, Donald C. D., Chang, Ming U.
• Primary Examiner(s): Urban, Edward F.
• Assistant Examiner(s): LE, LANA N
• Application Number:
  US09/615,894
• Time in Patent Office: 1,607 Days
• Field of Search: 455/431, 455/430, 455/13.1, 455/449, 455/63.2, 455/11.1, 455/427, 455/446, 455/428, 455/429
• US Class Current: 455/431
• CPC Class Codes: H04B 7/18504 Aircraft used as relay or high altitude atmospheric platform

Abstract

A method and system for communicating includes a plurality of cells having base units therein. Each of the base units communicates with a plurality of users within the cells. A communications platform is located in a stratospheric location for transmitting and receiving information with respect to the base units. A gateway station communicates with the communications platform and routes signals to terrestrial networks or other user back through the communications platform. A microcell within at least one of the cells is used to provide coverage in a small geographic area such as within a building. Each of the microcells is also in communication with the gateway station through the platform.

Claims

1. A communications system comprising:

a plurality of cells having a base unit therein, each base unit communicating with a plurality of users;

a communications platform located in a stratospheric location for transmitting information signals to and receiving information signals from said base unit;

a gateway station communicating with the communications platform for coupling the user terminal with a terrestrial-based network through the communications platform and the base unit; and

a microcell within one of the plurality of cells, wherein said microcell comprises a microcell base unit coupled to said communications platform.

2. A communications system as recited in claim 1 wherein said users are mobile.

3. A communication system as recited in claim 1 wherein the microcell is formed within a building.

4. A communications system as recited in claim 1 wherein said microcell base unit communicates with said platform in a non-blocking manner with respect to at least one of said plurality of cells.

5. A communications system as recited in claim 1 wherein the communications platform is substantially stationary in the stratospheric location.

6. A communications system as recited in claim 1 wherein said system comprises a plurality of communications platforms.

7. A communications system comprising:

a plurality of cells having a base unit therein, each base unit communicating with a plurality of users;

at least one of the cells comprising a microcell having a microcell base unit therein, each microcell base unit communicating with a plurality of microcell users within the microcell;

a communications platform located in a stratospheric location for transmitting and receiving information with respect to said microcell base units and said base units; and

a gateway station communicating with the communications platform for coupling the microcell user terminals through the microcell base unit and the communications platform, and for coupling the user terminals through the base units and the communications platform.

8. A communications system as recited in claim 7 further comprising a platform operations center for controlling the operation of the platform.

9. A communications system as recited in claim 7 wherein said users are mobile users.

10. A communications system as recited in claim 7 wherein the microcell is formed within a building.

11. A communications system as recited in claim 7 wherein said microcell base unit communicates with said platform in a non-blocking manner with respect to at least one of said plurality of cells.

12. A communications system as recited in claim 7 wherein the communications platform is substantially stationary in the stratospheric location.

13. A communications system as recited in claim 7 wherein said system comprises a plurality of communications platforms.